Every five thousand years, a door opens between the dimensions. In one dimension lies the universe and all of its multitude of varied life forms. In another exists an element made not of earth, air, fire or water, but of an anti-energy, anti-life. This "thing", this darkness, waits patiently at the threshold of the universe for an opportunity to extinguish all life and all light. Every five thousand years, the universe needs a hero, and…